Prepaid Expenses and Other Current Assets (Tables)

12 Months Ended

Dec. 31, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid and Other Current Assets

Prepaid and other current assets consisted of the following (in thousands):

	At December 31,
	2021		2020
Prepaid insurance	$	131	$	126
Prepaid expenses	253		233
Prepaid rent	74		80
Short-term deposits - non-inventory	18		—
Restricted cash	—		342
ERTC funds	445		—
Other	3		1
Total prepaid and other current assets	$	924	782